«The central problem of philosophy is philosophy itself posited as problem». Why do you need philosophy?

The fundamental idea of Being, or of Reality, or of Truth: this is what we seek in philosophy. Philosophy is the search for Being. What is Being, what is Reality? This is the problem of philosophy. If we could solve it by our mode of reasoning, i. e., by a relation subject‑object (...)

Judgements. Analytic and synthetic.

How are synthetic judgements a priori possible? How are they possible of Being? All systems of metaphysics (what is called) are those which affirm something of Being, or that something is Being.